Paddy McNair: Middlesbrough lodge £5m bid to snap up Sunderland and NI midfielder
The Black Cats have already turned down bids for the midfielder from Premier League side Brighton and an unnamed London club for £3.75M.
McNair made 18 appearances and scored five goals last season as Sunderland were relegated from the Championship.
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Hide AdHe broke into Manchester United’s first team in 2014 before joining Sunderland in August 2016.
Tony Pulis led Middlesbrough to the Championship play-offs last season but they lost 1-0 on aggregate to Aston Villa in the semi-finals and is hoping to bring McNair to Teeside to go one step better in the coming season.